Expand the z range to use all the available colors on
the map window, which can be valuable when you have blown
up the map and no longer have the highest or lowest
locations on the map. This will only work if you have subset the
DEM, and will put the elevation limits for coloring based on the highest
and lowest elevations on the map.

To arbitrarily set the color limits, right click on the elevation map,
pick "Elevation colors, Specify", and then select what you want
for the limits to use in coloring. These limits will then apply if
you switch to a reflectance map.

Chroma depth colors: the blue to red
progression that provides an illusion of
depth when used with the appropriate
glasses.

Terrain color scale: a color scale that
looks good with terrain and does not use
blue.

Gray scale: a black to white progression.

Alternate bands: contours displayed in
alternating color bands.

Color bands

IHS colors. You can change and preview
the color
scheme. For an elevation map the
intensity will be from the elevations,
the saturation can be from the light
reflectance model, and hue will be a
constants than you can adjust.

If you use colors
from a table, you can specify the table with
the colors and their ranges. There can be a
maximum of 1024 entries in the table, which is a
dbf table. The easiest way to edit that file is
probably in Excel.